Philips Semiconductors
Hi-Fi stereo audio processor; I2C-bus
Product specification
TDA8424
Table 4 Stereo/spatial stereo/forced mono
Spatial stereo
Stereo
Forbidden status
Forced mono
CHOICE
Table 5 Mute (see note 1)
Active; automatic after POR
Not active
MUTE
Note
1. POR = Power-on reset.
Tables 6, 7 and 8 are truth tables for the volume, bass and treble controls
Table 6 Volume control
2 dB/STEP (dB)
6
4
2
0
−2
−4
−6
−8
−10
V×5
1
1
1
1
1
1
1
1
1
V×4
1
1
1
1
1
1
1
1
1
V×3
1
1
1
1
1
1
1
1
0
−20
1
1
0
−30
1
0
1
−40
1
0
1
−50
1
0
0
−60
0
1
1
−62
0
1
1
−64
0
1
1
−80
0
1
1
STL
EFL
1
1
1
0
0
1
0
0
MU
1
0
V×2
1
1
1
1
0
0
0
0
1
0
1
0
0
1
1
1
0
V×1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
V×0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
September 1992
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